Wood-carving machine



Dec. 19, 1922. 1,439,215. w. B. YOUNG. WOOD CARVING MACHINE.

\ F|LED AUG..25, 192]. 5 SHEETSSHEET I.

1 U INVENTOR WWW, V6,

,4 TTORNEYS 5 SHEETS-SHEET 2.

W. B. YOUNG.

WOOD CARVING MACHINE.

FILED AUG-25. 1921.

Dec. 19, 1922.

(6,. A TTOHNEYS' 5SHEETS SHEE1 3- W. B. YOUNG.

woon CARVING MACHINE.

FILED AUG. 25. {92]- Dec. 19, 19 22 INVENTOR Zflqyaeg MTOR/VEYS i W. B. YOUNG.

WOOD CARVING MACHINE.

FILE!) AUG.25, 1921- 5 SHEETS-SHELI 4.

Dec. '19, 192.2. 1,439,215.

EFL?

A TTOHWEYS Dec. 19, 1922.

1 1,439,215. W. B. YOUNG.

WOOD QCARVING MACHINE.

FILED AUG-25. I92]. 5 SHEETS-SHEE'I 5.

MI l/E/V TOR A TTOHIVEYS Patented her. is, 1922. i

stares hdddjld rarest" @FFEQEE.

WILLIAM B. venue, or onroneo, rumors.

woon-canvmo MACHINE,

Application filed August 25, 1821. Serial No. 495,164.

To of] 22 71 0m may can era;

Be it known that l, \VILLniM B. loom a citizen of the United-States, and a resident of Chicago, in the county of Cook and State of lllinois, have invented a new and useful Improvement in -i1oocl-Cai'ving lvlachines, of which thefollowingis a full, clear, and exact description. I

My invention relates to wood carving machines, and it consists in thecombinations, constructions and arrangements herein described and claimed.

An object of my invention is to provide a;

wood carving machine having means for effecting duplicate carving simultaneously on a desired number of articlesarrangedin a plurality of groups or sets of four articles each. i

A further object of invention is to provide a device of the character described in which a plurality of driven spindles are arranged in groups or sets of four each and; each set of driven spindles may-be actuated Figure 8,

independently of the remaining spindles.

A further object of my invention is toprovide a device ofthe character described in which means are provided for h.- plurality of articles in adjusted pos with respect to one another and to the carving tools, whereby all articles may be turned about their respective axes simultaneously to insure the exact duplication of a pattern on all articles,

l furtl'ier object of my invention is to provide a wood carving machine having means for supporting work for movement in a lnn'izontal plane and having means for supporting aplurality of driven spindles in sets of four spindles, such means being capable of universal. movement. I

A further object of my invention is to provide a device of the character described in which the driven spindles and the working frame are inovably supported independently of each other, whereby vibrations of the work and of the cutting tools are reduced to aminimum.

A further object of my invention is to provide a device of the character described in which the driven spindles and the means for driving the same aresuspended from han gets in adjusted relative positions and are provided with counterweights-to afford ease f movement and adjustment.

Other objects and advantages will appear in the following specification, and the novelfeatures of the invention will be particularly pointed out inthe appended claims.

My invention 1s illustrated in the accompanying draw ngs, forming part of this application, in which I i I I Figure l is a side elevation of the "device,

Figure 2 is a front view of the same, Figure 3 is'a section along the line 3-3 of Figure 1,

Figure 4 is a'plan view showing the frame work structure of a working frame enibodied in the de ice,

Figure 5 is aplan view of a supporting table or frame embodied in the device,

t 'l 'tl t f riguie e is a no (01 p211 y in sec ioii, or

one of the driven spindles incorporated in the device, and of a fragmentary portion of the spindle-carrying frame,

11 supported on legs and connected by cross members which are preferably trusses 3 (see Figures 1. and The latter are rigidly secured to the side me'mbers 'l-l by bolts l, or the like, and to both the side members l-1 and the legs 2 by other bolts 5, whereby a substantially rigid supporting structure is provided.

A working frame or bed, indicated gener ally at '6 (see Figure 1) is movably supported on roller'bearings 7. The latter are sup ported to depend into grooves 88 that extend the entire length of the side members 11, and to this end, each of the roller bearrings 7 is rotatably mounted on a shaft 9 fixed in the sides of the grooves 8, as best seen in Figure 5. The peripheral wall of each of the roller bearings 7 is beveled oppositely from a line intermediate its length and each roller is partly disposed in a groove 10 in the under surface of a side member 11 of the working frame. It will be observed that the working frame comprises two of the side members 11. These members are horizon-- tally disposed and are c-onnected'by trusses 12 so that each side member 11 overlies the corresponding side member l of the sup porting in. me and the groove 10 in the under surface of the side member 11 is arranged to register with the groove 8 in tl e upper surface of the corresponding side member 1. The grooves 10 are, formed with eorn'erging walls so that the peripheral 'alls the roll r bearings l" have close rolling contact with the groov s l(ll(l and I play he een the worl'zing frame 6 and the supper-tin frame is prevented.

a As an additional means for preventing play or movement of the working frame relatirely to the supporting frame, I provide a plurality oi spaced apart it angular s ipporting rods or standards lb. These standards are at tached to the inner sides of the side members i in'spaced part relation so that the free end portions thereof are vertically dis and each carries a roller airan ot the side members 11 of frame provide a track eno' rollers 7 and the working frame may fore he moved along the side members 1. order to prevent any undue stress 1 l placed on one of the side n: embers when t working nine is moved that might o the side members 11 out of alinemen the side members 1., I proride a pair o screw rods 15 and 16. The screw. rod i journaled in bracket arms l(-l? attached to one side member 1 and extendin. later ally thereof while the screw rod 1S 3' mailed in similar bracket arms 18 4.81 tached to the ther side member l a its eat and extending laterally thereof as e in Figure 5. The screw rods 15 and it; at; parallel ith one another and. with the side members l-l. A h 'achet arm 1%) projects laterally of one of the side members it oi the working frame and carries a threaded sleere 20 through which th screw rod 15 is threaded. A. similar bracket arm is attached to the other side member ii and carries a threadec sleeve through which the screw rod 16 i threaded. The screw rod -7 i) is previded ith a sprocket 2 its fol;

ward end. A similar sprocket is rigidly the forward mounted on the screw rod 16st end of the latter. A pedestal 25 disposed midway between the side members l.l is equipped with a re rotatable hori t lly extendii shaft 26. A sprocket 24 is rigidly mounted on the shaft 26 l alinement with the sprocket 9A and zailzni sprocket 28 is rigidly mounted on the shaft 2.6 in alinement with the sprocket $23. A chain 29 provides a dr ing c i -nection between the sprocket 27 and the sprocket 2e, and a similar chain 30 is a:-

center 5: t centers d8.

that the worlcii will he moved on the rollers 6 cl suppo ng tramc when the shat 18 rotates, as b means at are the form of channel iron .th their webs in vertical pcs h their lower flanges e11; e members ll-11 by means v I 11}. '3, an I ()1 \z 1" 11x6. .1 11C lJLlll )wla 0-1 dill. 3Z5 1r ends by cress memlve 'ality of hearing menn he flhi ahnement between th and b retaining and ad ;;u 518 pro rted through retain- *ch of the retaini rings behe neniher 02 by a screw eh 7 a shaft -11 jour- 3? and in the end he sh ft is equipped worm gears 42 that are d thereon or may be formed rewlth, and with a worm gear is ions-tee thereon and detachably in the present instance, I "teen 01" the worm gears 42 have ed the same in sets of tours, re being sets of worm gears at each the worm gear Each oi? the worn'i I, mesh with a gear e rigidly in a shaft Each shaft 45 in bearin and secured reto znen'ilrers 33 and 32, whereb are arranged in parallelism transverx y of the members 'h shaft 4i extends beyond the member 352,- and 'arries a center eh ".e equipped .1p1l1es or mesh with a ugidiy nien ited o") a carrier tively. e 3 J i and i. equipped its forward end with a hat is precisely identical with the The centers 4L8 constitute the head or "front centers the device, as will be pointed out hereinafter.

The ta l .1

' er; a member 56 arranged parthe members and 3? The time the general form or an I-beam bottom flange resting upon the sidernemtaers i ll. the frame 6: Each of the side memos s llll is provided with a series of sockets 5? in its upper side, corresponding sockets of the two side members being alined. Pairs of clamping members 58-5S have depending pin exte sioi s 59 The members smelt of the working'trame or S) ii :curely to the frame members '11 11 adapted to enter the'sockets 57. Set screws carried by the clamping members are manipulated to engage the lower flange end I provide a plurality of intermediate work rests. Each of the latter comprises a standard 6% receivedin a vertical bore ofa block'66 and maintained in adjusted vertical position by means or' a set screw 67 A substantially U-shapcdtrame 68 is slidably disposed'onthe standard 64; above the block 66 and is held in adjusted position with respect to the latter by means of a set screw 69. The blocks 66 are heldbetween a pair of angle iroirmembers 70- 70. The latter are arranged to extend transversely of the frame members 1l-1l'and are provided with depending pins 71 received in the sockets 57. It will be observed that the set screw 67 is projected through one of the angle iron members 70 into the block 66 for engagement with the standard 6 in the manner described. The til-shaped frame 68 is disposedonthestandard 64- with its arms upstanding, and axially alined clamping screws 72-72are carried by these arms for as a rod. 1

engaging the work. The bl'ocks 66 corre spond in nnmber with the head centers 48 and 55 and are relatively arranged so tha each. article of i work held between a'lined head and tail centersmay be clamped between the adjustable clamping screws 72-72 and the article otjvork thus securely held against movement. This is important in the cvent'that the article oi work comprises a relatively thin longitudinal member, such In many types of wood carving machines now in use, of which I am aware. the means for supporting the carving tools is connected with the means for supporting the workingr bed or carried by the latter. In consequence. vibrations of the supporting trame and of the working frame are transmitted'to the means supporting the carving tools and this has detrimentally aliected the accuracy of duplicate carving. To preclude the trans inission of vibrations from the supporting frame or working frame tothe carving tools, or vice versa I provide means independent of the supporting table and the working frame 6 for operatively supporting the carv- Each tail center 61 is threadeding tools and the means for actuating the latter. To this end a spindle-carryir 1 U: a. (u is suspencet 7 .angci ions nom beams :75 mounted interniedateiv on a horn zontal shaft 76 carried by hang 77. The hangers 77 are attached to a ceiling 78 by means of screws 49, or the like (see Figures 1 and The shaft 76 is received in axially alined openingsSO in blocks 81 held between pairs of the hanger rods by retaining members 82. His important to note that l provide-a bea1ni75 toreach setor" the heat. centers 48. A like number oi the hanger rods 7 is provided. Each of the hanger rods 74 is connected at'its'upper enjdby a universal joint arrangement'tl with the erresponding beam 75 at oneend of the latter. Each hanger rod 74- is connected at its lov. r end by a universa oint arrangement 84H h the fspindle-carrying'f nine 73. Tlielatter will be suspended in -horizontal position slightly above the head centers l8, as best seen in Figure 1, when the beams 75 are maintained in horizontal positions. This accomplishedbymeans oi coin'iterweights placed on the beam 75 at its free end and secured in position thereon to balance the weight of the elementscarried by: the beam 75 at its opposite end. i 1

The spindle-carrying frame has the general form of an I-beaniprovided "with integral transverse strengthening ribs"86v spaced apart points along its length. The

webof theI-b'eam is cut away at points between the strengthening ribs '86 to provide series of apertures 87 in each of these apertures is disposed a pulley SS'that is rigidly mounted on a vertical spindle 89.

The spindle 89' projects through vertically alined openings90 and9l,'respectively, in

an uppercarrying plate 92 that secured to the upper side oi the npper'fiange oi? the spindle-carrying frame by means of bolts 93, or the like, and in a lower carrying plate 9% that is attached to the under side of the lower flange of the spindle-carrying frame bolts 95.--.The carrying plate 93 ,is fashioned with an integral boss 96 disposed in an opening 97 in the upper flange of the spindle-carrying frame, and the lower bearing plate 94 is likewise provided with an integral boss 98 disposed in an opening 99 in the lower flange of the spindle-carrying frame. The bearing plates 92 and are respectively formed with vertically alined tubular extensions 106 and 101 eceiving the spindle S9. The extension is tapering in form and 'is threaded exteriorly for engagement with an adjusting cap 102. Thetubular extension 100 is also preferably split adjacent to its ends so that any play between the spindle 89 and the extension 100 will be taken up when the cap 102 is tightened. The extenjon- 100 is :t'ashi'one'd to provide'anannularball race; 1.03 in the intermediate pulleys.

.& l 1,43

its upper end. -1. collar 101 rigidly mount d on the sp ndle S9 ann received within cap 102 s upon ball members A i posed partly in the annular groove 10 3 partly in a cooperating annular oroove in the lower end of the collar spindle 89 is'there'l ore supported anti-trictionally for rotation. The depending in nlar extension 111 is tapered and threaded exterior-1y for engagement with an adju 4' ing nut 10?. The extension 101 is peel ably split adjacent to itslower end so'tl t. play between its bore and the spindle be prevented when the nut 10? is tightened. A tool-receiving chuck 108 is carried by each spindle 89at its lower end.

:e is a are relatively arranged so that th pindle tor each of the head or 3 ont ceners A. follower holder 105) is carried by "he spindle-carrying frame in the same relaiverelation to the head center 55 as each of the spindles 89 has to a corresponding head center 48.

A motor 110 is provided for each set oi. tour spindles 48. Each motor is carriedby a hanger frame 111 so that a drive pulley 112 rigidly secured on its drive shaft will be arranged for rotation about a vertical axis. Each hanger frame 111 is pivotally attached at its upper end, as at 113,, to a horizontal arin 11 1 arranged to project laterally of a vertical shatt 115 rotatably supported at its ends, as at 116 and 117, between verticallyalined brackets 11S and 119. Thebrackets 118 and 119 are attached to a wall 120 or other vertical support by means of screws 121, or the like. The zontal arm 114 is stayed by a brace 122.

A belt 123 is passed around each' of drive pulleys 112, around the end pulleys 38 mounted on the remote spindles of? the set of tour spindles associated therewith, and arranged to engagewit i the pulleys 88 mounted on the intermediate spindles o1 theset The tour pulleys 88 o'heach set will therefore be driven by belt coi'inection with one drive pulley at the same speed; The intermediate spindles of e( ch set arranged in alineinent witheachother and in advance of the end spindles of each setto preclude frictional contact of adjacent portions of the belt-123 at points closeto It is important to note that the diameter of each drive pulley 112 is greater than the distance benection oil the drive pulley with the driven pulleys. Each belt 123 is normally maintained taut on account of the action 01 coun terweights 1241 carried at the outer end of an arm 125 attached to the hanger fraine .1 and projecting laterally of the upper d t the latter. compound tie ineinber. indicated generally at 126, is connected at end l y a universal joint arrangement n? with the spindle-carryinp' frame 73. and at its other and by a universal joint 128 with a vertical. beam 129 pivotally supported on a horizontal shalt 1.?0. The latter is carried by a plurality of brackets 131 attached to the wall .120. It will be observed that 1 provide four of the compound tie members 126 and a like number ot' the beams 129. Each 01 the beams 129 has an integral depending arni 132 that is inclined from the vertical. ll eights 183 are adjustably supported on the arm 132 and cooperate with the weights 85 carried by the horizon tal beams to insure the balancing of the spindle-carrying frame 73 when the latter has been moved into any position possible in view of its connections. It will be maniso that the spindle-carrying frame may be readily moved in any direction easily on account of the balanced construction described in the foregoing. The spindlecarryingr frame is equipped with a hook 184 ainterineoiate its length, and a cable 135 depending from the ceiling; may be attached to the hook 13 1 to limit the movementof the spindle-carryingfraine downwardly and to thus preclude the possibility o'l r jury to the carving tools (not shown). l-looks 136136 are carried by the spindle-carryinn frame at opposite ends thereof and a retractile spring (not shown) may be cinployed' to connect each of the hooks 1 16 with an adjacent wall or other structure to exert a tension on the spindle-carrying frame. A .shicld 137. which maybe a strip of canvas or other flexible material. is attacliedat one end to an end of the work ng frame 6 and is provided with a weight 138 at its free end (see Figure 1). overlies the roller wieels 7 el tposed when the working frame or bed is moved along the supporting; table and'prevents the accumulation of chips, dust, and the like on the roller wheels. l

From the foregoing; description ot the various parts of the device, the operation thereof may be dily understood. A. plurality of articles to be carved are placed between the head centers 18 and the tail centers alined therewith. The pattern is placed between the head center and the tail center alined therewith. The tail stock member 56 can be moved relatively to the head stock in the manner described in the foregoing to accommodate work of various lengths. Each article of work may be sup- The flexible shield- 'prevent any movement ofthe tail s rotated manually. in consequence, eacl of ported intermediately, if desired, by the tel-mediate work-supporting rest. A. p rality or guide rods 139 are provided member 56 when it is being" adjusted with respect to the head stock that woulc end to move corresponding head and tail centers out of alineinei t with each other.

" the guide rods 139 is slidably receired work simultaneously. Since'the spindles are a ranged in sets of tour and a separate drivingnieans is pro vided for each, set, any desired number of articles, not exceeding sixteen, may be carved at the same time with the machine illustrated. Obviously, may provide a greater or less number oi sets of spindles without departing from the spirit andscoge oi the invention. In "thoerent that it desired to rotate the articles of work, as for instance, if the carving is to extend entirely around a rod, the shaft e1 1 the gears'le will be operated and the sh as will be rotated simultaneously, thereby turning all articles or work engaged by the head centers l8 simultaneouslv and in a like manner, In the event that the worm ear secured to the shaft 41 to rotate therewith, the pattern engaged c center will likewise be turned in synchrony with the several articles of work. As pointed out in the foregoing, the worm is releasably attached to the shaft a1 and in consequence the pattern may be maintha BM /l tained stationary while the articles of worlr are turned as desired. A cover l l l (see Figure 11) houses the shaft 41 and the gears associated therewith. i

Since the spindle-carrying frame 78 anl the spindle-driving means are movably sup ported by means entirely independent of the working frame or bed 6, carvings of sfreater width-may be made than has heretofore been. possible without resetting the articles of work. Vibrations of the workinn frame or supporting frame are not communicated to the spindle-carrying frame and vibrations of the latter are not communicated to the Working frame. In consequence, the carving of a number of artis egral with the head i ttern be carved on to be carved cles of wo k in duplica e may be eil'ecteil, with absolxte acci'ii'acy ind the objectionable poclr markings occasioned by vibration when wood carving machines of ordinarv construction of which T am ur c -i, p L used, are obviated Each of the spindles 89 is equipped with oil cup 145 that is mounted on theciip and is arranged to feed a lubricant be tween the spindle 89 and its'bearings. An

- passage leading from the upper surof the lower flange or the spindle-car- 3; frame through the beari plate 0 provided for each spindle 89. latter is therefore maintained in a thorough ly lubricated condition. \c of the important ieatu of the iiiention is the balanced construction which ffords ease of manipulation of the spin- ..e-carrying frame unit. A. greater nber of articles of work may thereforev carved with a minimum of power con iption when IDY ClGVlCG used than is heretofore been possible. The means i'o supporting each motor is perfectly balance as has been pointed out, so that the drive belts are maintained inoperative engagement with the driven pulleys. u

I claim:

1. A device of the character described comprising a supporting rame, a working' iirame morably supported thereon, a head stool: supported on the workingirame, a plurality of head centers rotatahly supported on the head stoclr, one of said head centers being adapted to with a pattern and the remaining head centers .9; arranged in similar sets. each heinii' adapted to engage with article of worlr tail..toch supported on the working}; fr e, tail center carried bv the tail stock or each head center, said ail coin alined respectively with thecorrespondii i head centers, oth r ried by the worl 'ng frame for supper the articles of worlr and the pattern irpproximat-sly midway between the head stock and the tail stock, a spindle-carrying frame, plurality of spin es carried by the spindlecarrying frame, the number and arrangement or the spindles determined by the number and arrangement of the healicenters adapted to engage with articles of work. means for inovably supporting the spindlecarryingframe in desired position with respect to the head stock, whereby each spindle normally positioned adjacent to the corresponding head center, a follower holder carried by the spindle-carrying frame in a desired position with respect to the headcenter for engaging the pattern, and means for driving the spindles.

2. A device of the character described comprising a supporting frame, a working frame movably supported thereon. a head stoca supported. on

plurality head centers ported on the head steel, one of said head uvaneeznent oi the .i the number i being? deterarrangement of porting the working; 51 n1 i sly supporting the spindle-car vine; frame in a desired ;osition with res ect to the head stock, whereby each spindle is normally positioned adjacent to the corresponding head center, a follower holder carried by the spindle-carrying frame in a desired position with respect to the head center for engaging the pattern, a driving means for the spindlesoi each set, and counterweighted means for inovably supporting the driving means in desired positions with respect to the several sets of spindles.

3. In a device 'oit'jthe type described, a spindle carrying frame having a universal 5 movement, afixed support, a motor carrying frame pivotally arried by said. support and being movable toward and away from said it, llander-weighted means inspindle carrying: frame, a pulley secured, to.

said motor, a belt operatively connecting;

40 said pulley with said spindles, andmeans i'or yieldingly holding said pulley in engagement with said belt.

l. In a device of the type described, a

spindle carrying frame having a universal e5 movement, a fixed support, a motor carrying frame pivotally carried by said support centers dapted to engage with urn-e and of and being movable toward and away from said spindle carrying frame, a relatively wide pulley sec ni'et to said motor, a belt operatively connect said pulley with said spindles, and means for yieldingly holdingsaid pulley in engagement with said belt, said spindle carrying frame being adapted to move vertically with respect to said pulley.

In a device of the type described, a balanced spindle carrying "frame having a unirersal movement, a fined support, a mo tor carrying frame pivotally carried by-said support and being movable toward and away from said spindle carrying iranie, a

pulley secured to said motor, a bolt operatively connecting said pulley with said spindles, and nu is tor yieldingly holding said pulley in e u en'.=ent with said belt.

6, In a device or the type described, a balanced spindle carrying-frame having a universal movement, a fixed support, H10- tor carrying frame pivotally carried by said support and being movable toward and away from said spindle carrying frame, a relatively wide pulley secured to said motor,

a belt operatively connectin said pulley with said spindles, and means for yieldingly holding saiijl pulley in engagement with said belt, said spindle carrying frame being adapted to move vertically with respect to said pulleyv '7. In a device of the type described, a spindle carrying frame havinga universal movement,a fined support, a motor carrying frame ha ing a universal connection with said support, a motor carried by said motor cari' ing frame, a relatively wide pulley carried by said motor, a belt operatively connecting said pulley with said spindles, and means for yieldingly holding said pulleys in engagement with said belt, whereby said spindle carrying frame is adapted to move with respect to said pulley.

WILLIAM B. YOUNG. 

